2001
Left ventricular inotropic reserve and right ventricular function predict increase of left ventricular ejection fraction after beta-blocker therapy in nonischemic cardiomyopathy
Ramahi T, Longo M, Cadariu A, Rohlfs K, Carolan S, Engle K, Samady H, Wackers F. Left ventricular inotropic reserve and right ventricular function predict increase of left ventricular ejection fraction after beta-blocker therapy in nonischemic cardiomyopathy. Journal Of The American College Of Cardiology 2001, 37: 818-824. PMID: 11693757, DOI: 10.1016/s0735-1097(00)01162-1.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionRight ventricular ejection fractionBeta-blocker therapyVentricular ejection fractionVentricular inotropic reserveNonischemic cardiomyopathyEjection fractionInotropic reserveDobutamine infusionLong-term beta-blocker therapyNormal right ventricular ejection fractionImprovement of LVEFBeta-blocker doseRight ventricular functionSystolic blood pressureIntravenous dobutamine infusionEquilibrium radionuclide ventriculographyVentriculographic variablesLVEF increaseBlood pressureVentricular functionRadionuclide ventriculographyUnderwent assessmentIntravenous infusionBaseline variables
1998
Effects of Mental Stress on Left Ventricular and Peripheral Vascular Performance in Patients With Coronary Artery Disease
Jain D, Shaker M, Burg M, Wackers F, Soufer R, Zaret B. Effects of Mental Stress on Left Ventricular and Peripheral Vascular Performance in Patients With Coronary Artery Disease. Journal Of The American College Of Cardiology 1998, 31: 1314-1322. PMID: 9581726, DOI: 10.1016/s0735-1097(98)00092-8.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionPeripheral vascular resistanceCoronary artery diseaseRate-pressure productStress-induced fallSystolic blood pressureArtery diseaseBlood pressureCardiac outputHeart rateMental stressGroup IHemodynamic variablesAnger recallGroup IIMental stressorsEnd-systolic ventricular elastanceMental stress-induced changesSemisupine bicycle exerciseGroup II patientsComparable increaseDiastolic blood pressureVentricular ejection fractionExercise-induced changesVascular resistance
1996
Comparison of Nifedipine GITS and Hydrochlorothiazide in the Management of Elderly Patients with Stage I–III Diastolic Hypertension*
Dey H, Soufer R, Hoffer P, Wackers F, Black H. Comparison of Nifedipine GITS and Hydrochlorothiazide in the Management of Elderly Patients with Stage I–III Diastolic Hypertension*. American Journal Of Hypertension 1996, 9: 598-606. PMID: 8783785, DOI: 10.1016/0895-7061(96)00168-9.Peer-Reviewed Original ResearchConceptsNifedipine gastrointestinal therapeutic systemGastrointestinal therapeutic systemDiastolic blood pressureBlood pressureDiastolic hypertensionStage IVentricular massCardiovascular functionTreatment differencesGoal diastolic blood pressureSignificant blood pressure reductionWeek placebo washout phasePlacebo washout phaseWeek maintenance phaseBlood pressure reductionGoal blood pressureDiastolic filling rateRenal blood flowGlomerular filtration rateLeft ventricular massBlood urea nitrogenShort-term therapyAdverse side effectsSignificant adverse effectsDiuretic therapy
1994
Fetal Responses to Maternal Exercise: Effect on Fetal Breathing and Body Movement
Winn H, Hess O, Goldstein I, Wackers F, Hobbins J. Fetal Responses to Maternal Exercise: Effect on Fetal Breathing and Body Movement. American Journal Of Perinatology 1994, 11: 263-266. PMID: 7945619, DOI: 10.1055/s-2007-994588.Peer-Reviewed Original ResearchConceptsFetal body movementsMaternal heart rateMaternal exerciseFetal breathingHeart rateAge-predicted maximal heart rateMaximal heart rateReal-time ultrasonographyStandardized exercise testBlood pressureBruce protocolFetal responseGestational ageHealthy patientsExercise testFetal activityBody movementsSignificant decreaseBreathingTotal durationPatientsSignificant increaseExercisePregnancyUltrasonography
1988
Oral Terbutaline Augments Cardiac Performance in Chronic Obstructive Pulmonary Disease
Chan C, Loke J, Snyder P, Wackers F, Mattera J, Matthay R. Oral Terbutaline Augments Cardiac Performance in Chronic Obstructive Pulmonary Disease. The American Journal Of The Medical Sciences 1988, 296: 33-38. PMID: 3044105, DOI: 10.1097/00000441-198807000-00007.Peer-Reviewed Original ResearchConceptsChronic obstructive pulmonary diseaseObstructive pulmonary diseaseVentricular ejection fractionSubmaximal steady-state exerciseOral terbutalineSteady-state exerciseEjection fractionPulmonary diseaseSevere chronic obstructive pulmonary diseaseLeft ventricular ejection fractionFirst-pass radionuclide angiographySystolic pump performancePlacebo-controlled trialState exerciseExpiratory volumeBlood pressureCardiopulmonary effectsPlacebo dayHemodynamic measurementsVital capacityRadionuclide angiographyCardiac functionSubmaximal exerciseCardiac performanceHeart rate